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Spatial Extent of Data

USGS Data Source

USGS Thesaurus Keywords

surface-water / ground-water interactions, watershed, alluvial basin, drainage basin

ISO 19115 Topic Category

boundaries, geoscientificInformation

Place Keywords

California, New Mexico, Great Basin, Southwest United States, southern California deserts, Basin and Range Province, Rio Grande Valley, Utah, Arizona

Hydrogeologic Areas of the Southwest Principal Aquifer (SWPA) study

This raster dataset represents the boundaries of the hydrogeologic areas of the Southwest Principal Aquifer (SWPA) study of the National Water Quality Assessment (NAWQA) program. It is a compilation of the pre-existing Hydrogeologic Areas of the Southwest Ground-Water Resources Project, with additional data from the Central and Coastal basins of California, Northern New Mexico Rio Grande Valley, and South Central Colorado San Luis Valley.

Get Data and Metadata
Author(s) United States Geological orcid
Publication Date 2008-01-01
Beginning Date of Data 2000
Ending Date of Data 2004
Data Contact
Utah Water Science Center
DOI https://doi.org/10.5066/P9CW7IK3
Citation Geological, U.S., 2008, Hydrogeologic Areas of the Southwest Principal Aquifer (SWPA) study: U.S. Geological Survey data release, https://doi.org/10.5066/P9CW7IK3.
Metadata Contact
Water Mission Area
Metadata Date 2020-11-17
Related Publication
Citations of these data No citations of these data are known at this time.
Access public
License http://www.usa.gov/publicdomain/label/1.0/
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Harvest Source: ScienceBase
Harvest Date: 2024-08-24T04:55:37.909Z